Home / 13,180.23-19,756.58-5,778.45

Finding the Fourth Proportional to 13,180.23, 19,756.58 and 5,778.45

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Solution

The fourth proportional to 13,180.23, 19,756.58 and 5,778.45 is: 8,661.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.23 : 19,756.58 = 5,778.45 : x
  2. Step 2: Convert to fraction form
    13,180.23/19,756.58 = 5,778.45/x
  3. Step 3: Cross multiply
    13,180.23x = 19,756.58 × 5,778.45
  4. Step 4: Simplify right side
    13,180.23x = 114,162,380.81
  5. Step 5: Solve for x
    x = 114,162,380.81/13,180.23
  6. Step 6: Final answer
    x = 8,661.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.